<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /* 背景颜色 */
        /* body{background-color: #d4eade;} */
        /* 背景图片 */
        body{
            background-image: url('./1.png');
            background-repeat: no-repeat;
        }
    </style>
</head>
<body>
    <h1>这是一个h1</h1>
</body>
</html>